Brooder-heater.



showing another position of the parts.

' shown in Fig. 3.

UNITED s'rmrss PATENT. OFFICE.

BROODEFi-HEATER.

Specification of Letters Patent. Application filed June 21,1902. SerialNo- 213,606.

Patented Nov. 20, 1906.

To all whom it may concern.-

Be it known that I, GEORGE E. LITTLE- FIELD, a citizen of the UnitedStates, and a' gtical section through a brooder containing S the presentinvention. Fig. 2 is a like sect1on=through the lamp and lamp-supports,Fig. 3 is a side elevation of the connections between the drum andstandard of the heateril Fig. 4 is a bottom plan view of the parts Fig.,5 is a central vertical section through the referred form of theinvention and on the line 5 5 of'Fig. 6, and Fig. 6 is a' section on theline 6 6 of Fig. 5.

In the form shown in Fig. l the brooderhas a removable roof 1, sides 2 2a bottom 3, and a floor or artition 4, separating the brooder into twoambers, the up er of which, 5, is the brooder-chamber and t is lower ofwhich, 6,is the lamp-chamber. The brooder-chamher may have a suitabledoor, and the lampchamber 6 has a suitable door 7 extending into it. I

The partition or .door 4 has a perforation 8, on whose edges may rest aplate 9, 'of sheet metal, having a perforation 10 through its center.The iioor 4 rests u on cleats 4*,fastened to the inner faces of thesides 2.

the floor, as shown in Fig. l. A shallow cylindrical drum 11, having atop- 12, side 13,

and bottom 14, forms a part of the heat-racleat 4* may be fastened onthe front edge of extending rims 19 and 20. A bottom-casting 21 has twoupwardly-extending rims 22 and 23 of the same diameter as the rims and19, respectively, of the upper casting. An. inner sheet-metal tube 24fits on the rims 19 and 23, and an outer sheet-metal tube 25 fits therims 20 and 22. The outer tube has means of discharging heated airtherefrom, consisting in the present case of a series of perforations 26near its top. Thebottom casting 21 has also a rojecting duct 27 extendindown below the floor 4 and into the lamp-c amber 6, and this ductconnects with the s ace between the tubes 24 and 25. If now t e heatfrom the lamp is carried throu h the erforation 10 and into the tube 24,the pro nets of combustion will heat that tube andwill heat the air inthe space between the tubes 24 and 25, so that said air will risethrough and pass out of the perforations 26 and fresh air will be drawnin through the duct 27 The products of combustion from the lam afterpassing through the tube 24 strike t 1e point of the cone 15 and spreadthroughout the drum, rising along the side of the cone. A dead-air spaceexists between the cone and the top 12 of the drum, which acts as aninsulator, so that heat is not radiated directly from the top of thedrum. The products of combustion must fall to the bot" tom of the drumin order to be drawn off through the chimney or duct 17. The heat isradiated downward, so that the chicks inside the curtain will bethoroughly warmed and the tube 25 will protect the chicks from becomingoverheated by too close proximity ,to the chimney or tube 24. I

In the lamp-chamber 6 is the lam 29 and a supporting device therefor. Int e pres ent instance the lamp shown is of a variety which does notrequire the use of a chimney. The lamp rests upon aboard or support 30,having on or inte ral to its bottom wedges 31. btops 32 on t e upperpart of the board hold the lamp in proper place thereon. A stationarystop 33 is provided for a purpose that will be described. Under theboard 30 is a frame 34, carrying on its upper side wedges 35, corresending in position and in inclination with t 1e Wedges 31. The frame 34has a handle 36 extending out through the side ofthe brooder. The frame34 is pushed in until it strikes the stop 33. Then i the lamp is placedupon the board 30, and

, rib.5 0 outside the rib 22.

the board is inserted through thedoor'i. with its wedges upon the wedgesof the frame 34. In this position the front end 37 of the board 30 restsagainst some stationary abutment, such as the side of the brooder. Ifnow the handle 36 is pulled out to the position shown in Fig 2,the-wedges are shifted. the frame 30 moves parallel to the frame 34, andthe lam '2!) is raised vertically, so that its cone or c imney 38 fitsin the perforation it) or in the-bottom of the chinmev-tube 24. In thisposition the lamp-burner is above the intake of the duct 27. Means forproducing the vertical lifting of the lamp is a feature of thisinvention.

In order to separate the drum 1] from its standard, consisting of thetubes 24 and 25, there is fastened to the bottom H of the drum 11 aplate 39, having upon it the books 40, and the top casting l8,hereinbefore described, has the plate 41, having the lugs or projections42 adapted to fit into the hooks 40. The lugs and hooks fasten togetherin the manner of a bayonetcatch. The drum therefore may be released fromits standard by turning it slightly, so that the hooks disengage fromthe lugs 42, whereupon the drum may be lifted away, and the perforationinto the drum is then adapted to permit the insertion of a-brush orother cleaning device in order to remote accumulated dirt, soot, &c.,from the drum.

The form of brooder shown in Figs. 5 and 6 has a removable roof 1, sides2 2, a removable floor 4, forming the bottom of the brooder-chamber 5,and a space 6 'underneath the floor 4, in which the lam is supported.The floor 4 rests upon ceats 4,

astened to the inner faces of the sides 2. l A cleat 4 ma} be fastenedon the front edge of the floor 4. From the floor 4 depend sup 1'porting-arms 43, carrying wedges 44 and t ottom pieces 45. A lamp-board46 carries the lamp 29 and a stop 47 for pushing the lamp into place.The lam -bo'ard 46' carries wedges 48, that are a apted to strike andslide upon the bottom pieces 45. A stop 49 stops the lamp under theperforation under the floor 4 and under the central perforation 1O oftheheater. When the lamp is placed upon the board 46 and the board isinserted in place through the door 7, its extremity runs up on theWedges 44, while the wedges 48 aresliding on the front edge of thebottom pieces 45. The lamp is thus lifted vertically into lace, sothatits burnercone 38 is opposite t e perforation 10, formin the bottom ofthe inner tube 24. v

he heater has an inner tube 24, an outer tube 25, a bottom plate 21,having concentrio circular ribs 22 and 23, and a concentric From thebottom into ducts 52, communicating with openings 65 53 through the sidewalls 2; By these ducts fresh air from the outside is drawn into thespace between the inner tube 24 and the outer tube 25 and is dischargedthrough the openings 26, as before. The upper plate 41 of the heaterprovided with the bayonetcatch devices, as heretofore, has also a groove54, corresponding to the rib in the lower.

ing in the bottom'of the drum front the. plate 7]. (OYHSpOndlDg to thepart 18, heretofore described. This drum has no upper flat top 12, as inthe device heretofore described.

A chimney 17 leads the products of combustion out from the interior ofthe drum and is set upon the cast-tube 61, fastened to the top 59 of thedrum, and extends down inside the drum to near t bottom thereof. Fromthe middle of th jicone 59 rises the standard 62 for adjust-'atflysupporting the curtain 2b. In this embodiment, of thls invention thestandard 62 is screw-threaded, and a nut 63 runs upon the thread of thestandard and supports a late 64, of any suitable material, to the e geof which the curtain 28 is fastened As the chicks increase in size thelate 64 may be raised, so as to give the chic s more head-room insidethe curtain 28. "hen adjusting the plate 64 up or down, the chimney 17is tenumrarily removed.

The brooder of Figs. 5 and 6 is shmm without any bottom and is placeddirectly upon the ground or floor. Air is led into the compartment 6underneath the floor 4 through openings 65 in the walls 2. and said 0enings are covered by half-tubes 66, each 0 which distributes the air indifferent directions and prevents a direct draft toward the lamp.

The air in the upper compartment 5 is led out through openings 67 in thewalls 2 and near the roof by a duct formed by placing a board 68 acrossone or more of the corners of the chamber 5, so that the openings 67open into a compartment thus formed behind said board 6%. A cap orcover-69' closes the top of said compartment, and o nings 70 near thefloor -4 lead into sai compartment. through saitl'board 68.

What I 'claim'.is-- I. Inabrooderhavinga rforationtbrt'mgh a side wallthereof, and a rooder-chamber, a floor forming the bottom of thebroader-champlate 21 depend two tubes 51, which extend her, a lampsupportedbeneath said lloor, a heater in t 1e breeder-chamber comprisinga scares tubular standard for discharging heated products upward andhaving a separate air-pas sage therethrough, a duct connected with saidair-passage and extending to a point below the lamp-burner, and a secondduct connecting the first-mentioned duct with the perforation through aside wall of the brooder.

2. Inabrooderhavinga erforation through a side wall thereof, and abrooder-chamber, a floor forming the bottom of the brooderchamber, alamp supported beneath the floor,

a heater in the brooder-chamber comprising a standard consisting of aninner tube adapted to carry heated products upward, a tube below thelamp-burner, and a second duct connecting the first-mentioned duct withthe perforation through a side wall of the breeder. 4. inabrooderhavinga )erforation through a side wall thereof, and a rooder-chambei, a

' outside of said inner tube floor forming the bottom of thebrooderchamber, a lamp supported beneath the floor,

a heater in the brooder chamber comprising a standard consisting of aninner tube adapted. to carry heated products upward, a tube erforated atits top, a duct connected wit the space between said tubes and extendingto a point {below the lamp-burner, and a second duct ,connecting thefirst-mentioned duct with the perforation through a side wall of thebreeder.

5. In a brooder having a brooder-chamber, a flooring forming the bottomof the brooderchamber, a heater in the brooder-chamber having alamp-orifice, a lamp-chamber below said flooring, and means in saidlamp-chamber for lifting the lamp vertically to said lamp- 6. In abrooder having a orooder-chamber, a flooring forming the bottom of thebrooder chamber, a heater in the brooder-chamber having a lamp-orifice,a lamp-chamber below said flooring, a sup ort for said lamp in saidlamp-chamber, an means for moving said support vertically to insert saidlamp into the amp-orifice.

7. In a brooder-heater, a drum, a tubular.

standard forsaid drum for conducting products of combustion thereinto,and releasable locking means between thedrum and standard.

8. In a brooder-heater, a drum, a tubular 1 standard therefor havingmeans of conductand releasable connecting means at the bottom of thedrum for locking the drum and the standard together.

9. In a brooder-heater, a drum, a tubular standard for said drum forconducting products of combustion thereinto, and a bayonetcatch lockbetween the standard and the drum.

10. In a brooder-heater, a drum having a perforation in its bottom, alate fitting said perforation having one mom or of a bayonetcatchthereon, a standard for said drum for conducting products of combustionthere- 'into; and a casting on said standard having the other member ofsaid bayonet catc thereon.

perforation through its bottom and an mverted hollow' cone having its aex pointing downward and set over said pe orat1on,-sup orts between thebottom and apex of said rum, and a standard for said drum having intosaid perforation.

12. In a brooder-heater, a drum having a perforation through its bottomand an inverted hollow cone having its apex pointing downward and setover said perforation, a standard for said drum having means ofconducting products of combustion into said perforation, and areleasable connection between the standard and the drum.

13. In a brooder-heater, a drum having a perforation through its bottomand an inverted hollow cone having its apex pointing downward andoversaid perforation, a standard for said drum having passage forconducting products of combustion into said perforation, and abayonet-catch connection etween the standard and the drum.

14. A. brooder heater having a standard consisting of an inner and anouter tube and end castings having corresponding ribs or projections forfitting the respective ends of said tubes, the outer tube having anair-inlet at the bottom, and an air-outlet at the top.

consisting of an inner and an outer tube and end castings havingcorresponding ribs or projections for fitting the respective ends ofsaid tubes, the outer tube havlng an air-inlet at the bottom and anair-outlet at the top, a drum having a central perforation, a p atefitting said perforation, and having one mem ber of a releasableconnection, member of said connection beingupbnttp upper end casting ofsaid standard. I I

16. A brooder-heater having a" standard consisting of an inner tube, anouter-tube having perforations near its top and a wirescreen outside ofsaid outer tube, and end castings having sockets for the endsiof the"11. In a breeder-heater, a drum having a.

the gother ing products of combustion into the drum,

means of conducting products of combustion 15. A brooder-heater having astandard inner, outer mg being perforated to admit air between the innerand outer tubes. 7 v

17.. In a brooder, a breeder-chamber, a

5 heater therein, a screw-threaded support extending upward from saidheater, a nut upon said screw threaded support, a plate supand Wiretubes, the bot-tom cestf ported by GEORGE E. LITTLEFIELD. Witnesses:RALPH W. BARTLETT, PHILIP R. PARK.

